Content Metadata API

We offer an export of metadata for all learning content on serlo.org.
(There is a separate API for the content itself.)

Articles

• https://de.serlo.org/entity/api/json/export/article
• https://de.serlo.org/entity/api/json/export/latest/article/5
• https://de.serlo.org/entity/api/rss/article/5/feed.rss

Data Explanation

• titel: titel of the article
• description: is generated from the first sentences of the content
• guid: a number to unambiguously identify all content provided by Serlo
• keywords: the keywords are not yet very meaningful in consistently linking to an article
• categories: topic-paths and curriculum-paths leading to the article
• lastModified: date of the most recent change
• revisionCount: number of adaptations that have been processed until now
• authorCount: number of authors that have been involved until now

Quality assurance

revisionCount and authorCount can be used as indicators for the quality of our content. By using e.g. revisionCount:5+ and authorCount:2+, new articles and articles with few authors involved can be filtered out.

Courses

https://de.serlo.org/entity/api/json/export/course https://de.serlo.org/entity/api/json/export/course-page

Exercises

https://de.serlo.org/entity/api/json/export/text-exercise